thank you for replying R1 is the thermistor yeah but actually the 741 op amp is
18
27
36
45
everything is quite clear except for R4 and the thermistor..there's only 3 holes in the ground area in the layout 1 for the fan 2 for the capacitor and the 3rd should be for either the...
http://tehnikservice.net/2008/02/23/fan-controller-by-ic-741/
Guys Can you please illustrate how to connect the components to this layout.. especially the thermistor and R4..thank you !